package com.example.demo.service;

public class TestService {
    public static void main(String[] args) {
//       Integer a =Integer.valueOf("123");
//        System.out.println(a);
        String b="123";
//        int[] arr={1,2,3,};
        char[] arr=b.toCharArray();
        for(char e:arr)
        {
            System.out.println(e);
        }
    }
}
